Water purification equipment for efficiently removing microplastics in drinking water

Abstract

The application provides a water purification device for efficiently removing microplastics in drinking water, and belongs to the technical field of drinking water treatment, and comprises a fiber filtration unit, a ceramic filtration unit, a graphene adsorption unit and an ultraviolet sterilization unit connected in sequence through pipelines and a support. The water purification device can efficiently remove microplastics, and the removal rate is more than 99%. Multi-stage filtration and adsorption are combined to remove microplastics of different particle sizes step by step. The device is compact in structure, and is suitable for various scenes such as families and units.

Description

Technical Field

[0001] This invention belongs to the field of drinking water treatment technology. Specifically, this invention relates to a water purification device for removing microplastics from drinking water. Background Technology

[0002] In recent years, microplastic pollution in drinking water has attracted widespread global attention. Microplastics refer to plastic particles with a diameter of less than 5 millimeters. As a new type of pollutant, their spread and accumulation in the aquatic environment not only threatens ecosystems but also poses serious harm to human health. Traditional water purification equipment (such as activated carbon filters and reverse osmosis equipment) can remove some microplastics, but they suffer from problems such as low efficiency, high cost, and easy clogging. Therefore, developing a highly efficient, economical, and easy-to-maintain microplastic removal device is of great significance. Summary of the Invention

[0003] The purpose of this invention is to provide a water purification device that efficiently removes microplastics from drinking water. Through multi-stage filtration and adsorption technology, it significantly improves the removal rate of microplastics while saving energy and reducing equipment operating costs.

[0004] To achieve the above objectives, the present invention provides a water purification device for efficiently removing microplastics from drinking water, comprising a fiber filtration unit, a ceramic filtration unit, a graphene adsorption unit, and an ultraviolet sterilization unit, and a support frame, which are connected in sequence via pipelines. The fiber filtration unit, ceramic filtration unit, and graphene adsorption unit are fixed below the support frame, and the ultraviolet sterilization unit is fixed above the support frame. The fiber filtration unit contains a fiber filter element with a pore size of 10-50 micrometers, the ceramic filtration unit contains a ceramic filter element with a pore size of 1-10 micrometers, the graphene adsorption unit contains a nanoscale graphene-based adsorption medium, and the ultraviolet sterilization unit contains an ultraviolet lamp and matching electrical devices.

[0005] The water purification process of the water purification equipment of this invention is as follows: Tap water or water from other water sources first enters the fiber filtration unit, where it is filtered through a fiber filter element with a pore size of 10-50 micrometers to remove larger microplastic particles; then it enters the ceramic filtration unit, where it is filtered through a ceramic filter element with a pore size of 1-10 micrometers to further remove smaller microplastic particles; next, the water enters the graphene adsorption unit, where it passes through a nanoscale graphene-based medium to adsorb nanoscale microplastics and organic pollutants in the water; finally, it enters the ultraviolet sterilization unit, where it passes through an ultraviolet lamp to kill bacteria and viruses in the water, ensuring water quality safety.

[0006] Compared with the prior art, the present invention has the following advantages: 1. Highly efficient removal of microplastics, with a removal rate of over 99%; 2. Multi-stage filtration combined with adsorption, adaptable to microplastics of different particle sizes; 3. By relying on the pressure of tap water, energy consumption and operating costs are reduced, and equipment operating efficiency is improved; 4. Compact structure, suitable for various scenarios such as home and office. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the water purification equipment of the present invention: 1—fiber filtration unit, 2—ceramic filtration unit, 3—graphene adsorption unit, 4—ultraviolet sterilization unit, 5—support. Detailed Implementation

[0008] The present invention will now be described in detail with reference to the embodiments and accompanying drawings. These embodiments are non-limiting examples of the present invention.

[0009] Example 1: This embodiment of a high-efficiency water purification device for removing microplastics from drinking water is installed in a home, with municipal tap water as the water source. The water purification device of this embodiment includes a fiber filter unit (1), a ceramic filter unit (2), a graphene adsorption unit (3), and an ultraviolet sterilization unit (4) connected in sequence by pipelines, as well as a support (5). The fiber filter unit (1), the ceramic filter unit (2), and the graphene adsorption unit (3) are fixed below the support (5), and the ultraviolet sterilization unit (4) is fixed above the support (5). The fiber filter unit (1) has a built-in fiber filter element with a pore size of 10-50 micrometers, the ceramic filter unit (2) has a built-in ceramic filter element with a pore size of 1-10 micrometers, the graphene adsorption unit (3) has a built-in nano-scale graphene-based adsorption medium, and the ultraviolet sterilization unit (4) has a built-in ultraviolet lamp and matching electrical devices.

[0010] The water purification process of the water purification equipment of the present invention is as follows: tap water first enters the fiber filtration unit (1), and is filtered by a fiber filter element with a pore size of 10-50 micrometers to remove larger microplastic particles; then it enters the ceramic filtration unit (2), and is filtered by a ceramic filter element with a pore size of 1-10 micrometers to further remove smaller microplastic particles; next, the water enters the graphene adsorption unit (3), and is filtered by a nanoscale graphene-based medium to adsorb nanoscale microplastics and organic pollutants in the water; finally, it enters the ultraviolet sterilization unit (4), and is irradiated by ultraviolet lamps to kill bacteria and viruses in the water to ensure water quality safety.

[0011] The microplastic removal rate in this embodiment was 99.2% as tested.

[0012] The beneficial effects of this invention include: highly efficient removal of microplastics, with a removal rate of over 99%; a combination of multi-stage filtration and adsorption to remove microplastics of different particle sizes step by step; relying on the pressure of tap water to reduce energy consumption and operating costs, and improve equipment operating efficiency; and a compact structure suitable for various scenarios such as homes and offices.

Claims

1. A water purification device for efficiently removing microplastics from drinking water, characterized in that, The device includes a fiber filter unit, a ceramic filter unit, a graphene adsorption unit, and an ultraviolet sterilization unit connected in sequence via pipelines, as well as a support frame. The fiber filter unit, ceramic filter unit, and graphene adsorption unit are fixed below the support frame, and the ultraviolet sterilization unit is fixed above the support frame. The fiber filter unit contains a fiber filter element with a pore size of 10-50 micrometers, the ceramic filter unit contains a ceramic filter element with a pore size of 1-10 micrometers, the graphene adsorption unit contains a nanoscale graphene-based adsorption medium, and the ultraviolet sterilization unit contains an ultraviolet lamp and matching electrical devices.

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